Cable grip



B. C. RIBLET Jum: 17, 193.

CABLE GRIP Filed Feb. 18, 1929 2 Sheets-Shet 1 BYRON C. RIBLE InventorAttorney 8. C. RIBLET jim T7, 1930.

CABLE GRIP Filed Feb. 18, 1929 2 Sheets-Sheet 2 BYRON (LR/5L5?- Imovable jaw a tension spring 16is-located for the purpose of :projecting-the movable jaw to the right in Figures 7 and 8 when permitted to doso, for the release of then Jaws from the cable.

the movab le jaw aiidthe 'blo ckmovewith the V slidable bolts, nutsl8'being used on the bolts ,tbret'ain the wedge block.

At its inner, side the wedge block is fashioned with two'a'ngular wedgefaces. 19 and 20 and these faces are located in spaced relation to awear block- 21 that is securely c arried in a socket inthe face of thehanger 5. The jawsarefgripped on thecable by the a'ctibn' of adownwardly movable wedgebar 27 as itpasses in between; the bearing blockwear block 21 and the w edge faces of the we d g blbck'to "draw theIIiOVable jaw tOWaId.

t e fi i T isw dss ba sh ts e'r .end a pair, of wedge "faces, 23 and2:4, dis pi'i sed at angles" complementary to' the' two faces of thewedge block, 'so that-as the wedge tar esends o uessing grip; the

and .20will engag'ewith -a comparawq y Sl s i fiQ i I a: u d mo eme andthen the face's23 and 19 will engage with a greater degree pf frictiontopositively'close the grip, and this greater friction prevents the wedgebar from beingdisplaced by vlbra- 7 sons due to trayel'of the c onveyerunit: The

wedge bar is thus'iowered to close th e grip, and means are providedwhereby the bar is raised when the grip is tozbe opened 'or' released.

, A-t the apparent or thewedge bar a air of I side plates 44 websitesand these spaced Plat s t rm an p su i'f f h wedge bar, frame straddlesa guide ;pin-25. rigid with'the trolley name, to enable the wage-bar torise and fall without lateral v displacement. Above theguide pin apairof bolts 26 tie the plates together and tubular spacers or pipesections-Q2 are 'interpo'sed be- 1 ftwen'ithe plates. A washer 28'mounted V on the 'outer'end-ofthepin, and a 'cotjterpin QQinTthe pinholdsthewasher lightly against the outer edges of the side platestcpr'eveiit wbbbli-ng of the' 'We'dgeQ Fai r eel yire rr efii sse B antifrictio'n roller or wedge-roller 30 is Journaled onastud shaft 3l thatis mounted "i n l'a tearing block 32; bolted withinl tlie space bsttr nth s e assed at t e pp sldeof thew'edge bar aretaining roller 33 isjournaled on the stud shaft. For co-action of the retaininglever arm,and at 37cm end of the spring is connected to a part of the hanger 5.Thus the pivoted end'of the lever arm i s 's'uppbrt'ed on the hanger andone end ofmthe spring is anchored to the hanger, in

. order that the lever arm may, with a resilient The bolts are threadedat one end in-the' n ovable aw, andat their other ends a wedge blbck 17isjsecured; it being understood that c 7 a v H V g V 'tionary ramp 38in'Figme 1 when thereonpressure on the retaining roller, hold the wedgebar 'inplace, toprevent its dislocation.

The wedge bar is lifted'by meansof a'-sta- Veyerunittravels to therig-ht and the wedge roller '30 rides up and alongthe ramp, andthe wedgebar on the following trolley is lifted in the'saine manner. When theroller 30 encounters the ramp and" rides upwardly as indicated, theWedge bar is lifted and the wedge fac'es at the end of the bar arelifted to'released position in'f Figure 4. This displacement ofthe'lowergendjof the'wedg'e' bar permits the spring 16 to'pr'oject, themovable jaw 13 so that the traction Cable may-fall from the grip, Itwillbe'understoodthat the retainingspring 8'6 hasfsufli'cient' strength tohold the wedge harin place, but has not'sut ficieiit strength to ovreome the friction of the Wedge parts and force them apart.

For lowe'ring the wedgebar to lock the grip or grip the jawsonthe'cable', I may employ in link'co-operatin'g with a bolt or pin e3to'guide the vertical'swinging movement of the overhead5flgravity, ramp.Thenor'mal,

loweredpos'itionof .this'ramp is indicated dotted lines, and the weightof ,thejsus pended-ramp is sufiicientt'o-be'ar down on the wedge rollerwhen the latter encounters the ramp; in order that the wedge bar shallbe depressed to 'grippingposition; The purose of this movable ramp. isto compensate for different sizes of traction cablewith' which the gripcoact's; Sometimes the diameter ofthe' cable is reduced,1 due to wear,"and I sometime's'a cable of different diameter is substituted for the,original cable. This difie'r'ence is takencare ofor compensated forbytheuse of the weighted-but movable ramp.

. U suallythe gripping ramp iis'located down 1 an inclirieofthesuspension cable s'otliat'th e conveyerunit may run down theincline "adistancefs'ufiicient to insure-theimomentiim required to depress thewedge} bar andgrip the cable. In this manner the traveling unit is rippd t th twir ng tr c io s e an unnecessaryje'rks are avoided whenthegripping action'takes place.

f Having'thus fully describedmy invention,

"whatI claim as new and' desire to secure by 7 'Letters Patent is j LJIn a cable grip the combination witha "support forming a stationary aw,of a mov- ,a spaced; wedge block' rigid with themovable aw, a wedgeoperable between the wedge W, I block and a portion of the support,jandmeans: 1*10 i for Operating the wedge.

support-forminga stationary jaw, of a pair of slide bolts mounted in thesupport and a "movable jaw rigid with the bolts, a spaced wed'ge'blockmounted on the bolts, a wedge 1 I operable between'the block'andsupport, and Y t, means for operating, the wedge.

able j aw slidablymounted in thesupportand 2. In a cable grip'thecombination with a 9; In a cable grip ofithejwedgeit suspended fromthe'support, [awedgeroller f ramp, a retaining roller :journaled on" thef 1 bar, aleverQarmpivotedat one :end-onthe hanger andfrictionally-engaging the retain-1 ing roller,'and a spring connectingthes fr'ee endgof the arm with saidhanger;

journaled on the -bar forco-action witha In testimony whereof Iiafiixmysignature,

I i Ina-cabhgriP e 'combinationwith a f F support forming a stationary jawl, of a pair.

#20 v s a "[the support, a jaw secured on said bolts and anexpansionspring interposed betweensaid of spaced, parallel bolts slidably mountedin jaws, a wedge block,-a wear block on the suptween said blocks. 7

support forming a stationaryjaw, of a'laterf fally movable jaw and"wedge mechanism for 1 '7 closing said jaws, said mechanism.including p awedge bar, and resilient means fbrretitlll 4 ing said wedge barinoperative position.

"able with the latter j aw, a reciprocable wedge roller mounted on thewedge bar.

port, and a reciprocable wedge operablebe 1 25v j p 7 214. 1111 a cablegri gipj'he combination with a v i, I, 4 Ina cable grip the combinationwith" a5 1; j i

v supportforming astationary jaw and a'latv erallv movable jaw, ofawedge blockjmov- '35 bar and' guides therefor, and an anti-:sfrictio'nv 6'. In a cable grip the combination wit-ha hangenaboss thereon forminga'jaw,a: lat-" i it Rm s s v s anda spaced wedge block; movable with thejaw, o'fa su'pportffor the hanger, a recipro a p cable wedgebarsuspended from sa1dsuperally movablerjaw supported onrthe boss mendmeans for depressing the wedge bar toclose said jaws. 7 {37, In a cablegrip, the :combination witha hanger and a fixed jaw mounted thereon, a Qcomplementary, movable jaw supported on) thehanger and awedge block.movable with the hanger, a r ecipthatjaw, of asupport for rocable wedgebar suspended: from saidf'sup- 0' 1 portj fmeans' for depressingthewedge bar, a p j V fwedg'egroller on the bar",ja r etaini ng roller 0nthe bar, a retaining lever-pivoted at ,one W end to the hanger andengaging the retaining I J p roller,and-:a'spring connecting thefree'end of *the retaining'leverwith the hanger.

158.]In a cable'grip ofithewed'getype,the v I combination of asupportfand'a hangersusi ipendedtherefrom, of avertically reciprocab1ec1i I ,wedge bar suspended'from the support andif 1 me'ans'on thebar-'for co-a'ction with a ramp,

" a {retaining roller'journaledjon the'banand a springretainingleverearmmounted on: the s V j hanger'andfco-acting with said'rollertfij 1 f combination of a support and a suspended I hanger,01Ea'verticallyre'ciprocable wedgebar v I

